Who seeks shall find.
Be gentle to all and stern with yourself.
It's always too early to quit.
What you do today can improve all your tomorrows.
Never complain and never explain.
To be a good loser is to learn how to win.
Things do not happen. Things are made to happen.
Always desire to learn something useful.
Begin to be now what you will be hereafter.
Know or listen to those who know.
Without feeling abashed by my ignorance, I confess that I am absolutely unable to say. In the absence of an appearance of learning, my answer has at least one merit, that of perfect sincerity.